Walkie - Walkie is an online communication providing software that allows you to remain in touch with the other persons.
Warmspace - Tech-powered conversations that transform relationships in work and life.
Cord - One tap voice chat
oorja - Your Dedicated Meeting Spaces Online — no installations
Slack Voice Chat by Standuply - Easily record and send voice messages on Slack 🗣️
ClearChat - If you're hosting a public video chat then it can attract unwanted attention from troublemakers.